iPadOS 11.3 (build 15E216) is an official Apple over-the-air update for the iPad mini 3 (WiFi), released on 2018-03-29T17:06:59Z. The update package is 607.98 MB. This is a delta (partial) update that requires 11.2.6 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c5d819edfd8831b553023acbe0f2eb7d5a25c8da.zip.